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CHEM 120 Week 7 Lab practicum
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CHEM 120 Week 7 Lab practicum
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CHEM 120 Week 7 Lab practicum (100% Correct)Chamberlain University
Scientific Method - ANSWER Consist of observation, hypothesis, experimental
design, results, and theory
independent variable - ANSWER variable that is manipulated
dependent variable - ANSWER The measurable effect, outcome, or response
Theory - ANSWER Explains why you got the results.
Protons - ANSWER positively charged particles in the nucleus
Neutron - ANSWER no charge, found in nucleus
Electron - ANSWER negatively charged particle outside the nucleus
atomic number - ANSWER the number of protons in the nucleus of an atom
Mass number - ANSWER the total number of protons and neutrons in the nucleus of
an atom
Ions - ANSWER positively and negatively charged atoms
Cation - ANSWER A positively charged ion - metal
Anion - ANSWER A negatively charged ion - nonmetal
Isotope - ANSWER Atoms of the same element that have different numbers of
neutrons
C-14 - ANSWER 6 protons, 8 neutrons, 6 electrons
ionic compound properties - ANSWER Metal and non metal; completely dissociat in
water
name molecular (covalent) compounds - ANSWER Two or more nonmetals; add
prefixes; 1st element retains name - add ide to second element
ionic compound - ANSWER metal and nonmetal; no prefixes; name cation then
anion - add ide to anion
1 - ANSWER Mono
2 - ANSWER Di
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